78535453587 has 8 divisors (see below), whose sum is σ = 104719789200. Its totient is φ = 52354043520.

The previous prime is 78535453573. The next prime is 78535453589.

78535453587 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78535453587 - 2⁸ = 78535453331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78535453587.

It is not an unprimeable number, because it can be changed into a prime (78535453589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667962 + ... + 776687.

It is an arithmetic number, because the mean of its divisors is an integer number (13089973650).

Almost surely, 2^78535453587 is an apocalyptic number.

78535453587 is a deficient number, since it is larger than the sum of its proper divisors (26184335613).

78535453587 is a wasteful number, since it uses less digits than its factorization.

78535453587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462773.

The product of its digits is 70560000, while the sum is 60.

The spelling of 78535453587 in words is "seventy-eight billion, five hundred thirty-five million, four hundred fifty-three thousand, five hundred eighty-seven".